Water-blocked optical cable and process for the production thereof
CA 2586930 C · Owner: Maritano, Mauro · Inventors: Pizzorno, Massimo; Ginocchio, Alessandro; Maritano, Mauro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical cable for communication comprising at least one retaining element blocked with respect to the water propagation as well as a process for manufacturing , such an optical cable are described. The optical cable comprises in addition , to the , retaining element at least two transmission elements housed within the retaining , element, and a water swellable yarn housed within the retaining element. The water , swellable yarn is selected according to the following equation: (I) in which V w is , the volume of the water swellable yarn after swelling upon contact with water; V TF is the total free volume in the retaining element; k is a constant >= 180; R is a , constant >= 1.4; …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed November 5, 2004 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 5, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.